Queenie Fletcher says: "Things are happening. The Government knows the names of the people involved...I think they are getting somewhere"

Yvonne’s mum Queenie has told of her hope that she could finally see justice for her daughter.

Ahead of a memorial for the tragic WPC, the 80-year-old said: “Things are happening. The Government knows the names of the people involved. I worry about them getting proof and that the proof will still be there.

“I have waited a long time. We shall see if they get it. I just want justice.”

Queenie said she was being updated on the latest developments by officials and added: “I think they are getting somewhere. I think they are looking at someone.

“They want to do all they can to find who killed my daughter.”

Yvonne, who had three sisters, was laid to rest in a graveyard in Semley, the Wiltshire village where her mum has lived for nearly 40 years.

Today Queenie will join Met Commissioner Sir Bernard Hogan-Howe and Yvonne’s old colleagues for a memorial service to mark the anniversary of her death.

Flowers will be laid in St James’s Square, Westminster, where Yvonne was shot. Queenie vowed to collar high-ranking dignitaries at the event. She said: “I am going to the memorial and I will raise this with the most senior people there.

“I’m not afraid to talk to them. I’ve been doing this for a long time.

“I’ll corner the senior politician or whoever it is and ask what they are doing. I want something done.

“Thirty years is a long time but I remember the day like it was yesterday. Sometimes it seems like a long time, other times it doesn’t. I don’t ever forget. I’m 80, I’ll wait.”

She also paid tribute to Yvonne’s colleague John Murray, who was by her side when she was shot and has waged a one-man hunt for justice.

Queenie said: “He is doing a lot of digging. He may be able to get things done. We shall see.”